ragnarok | db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7
submitted
03/08/2020, 13:36

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General

Target

db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe
Size

228KB
MD5

e134d5a91ed31516566a091c0caa76fe
SHA1

260c54f8ef9450d2366794f35d0b291bdc133ec5
SHA256

db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785
SHA512

4bccd544d3f53e4240b62651465eee6347cf54501437cf7d6f79060707ba702f4ff16435aeb342099f4b238e7b7372a60a2271b3a9b537e4893d743874c8d1db

Score

10^/10

ransomware evasion spyware persistence ragnarok

Malware Config

Extracted

Path

C:\How_To_Decrypt_My_Files.txt

Family

ragnarok

Ransom Note

#what happend? Unfortunately your files are encrypted, To decrypt your files follow the instructions 1. you need a decrypt tool so that you can decrypt all of your files 2. contact with us for our btc address if you want decrypt your files or you can do nothing just wait your files gona be deleted 3. you can provide a file which size less than 3M for us to prove that we can decrypt your files after you paid 4. it is wise to pay in the first time it wont cause you more losses DEVICE ID: ---------------------------- 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 ---------------------------- you can send your DEVICE ID to mail address below [email protected]

Emails

[email protected]

Signatures

Ragnarok
Ransomware family deployed from Citrix servers infected via CVE-2019-19781.
ransomware ragnarok

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1828	vssvc.exe
Token: SeRestorePrivilege	1828	vssvc.exe
Token: SeAuditPrivilege	1828	vssvc.exe

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Modifies service 2 TTPs 10 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Shas	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\LocalConfig	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\Enroll\HcsGroups	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Qecs	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\UI	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 300	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	25
PID 900 wrote to memory of 300	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	25
PID 900 wrote to memory of 300	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	25
PID 900 wrote to memory of 300	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	25
PID 900 wrote to memory of 748	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	26
PID 900 wrote to memory of 748	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	26
PID 900 wrote to memory of 748	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	26
PID 900 wrote to memory of 748	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	26
PID 900 wrote to memory of 1100	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	27
PID 900 wrote to memory of 1100	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	27
PID 900 wrote to memory of 1100	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	27
PID 900 wrote to memory of 1100	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	27
PID 900 wrote to memory of 1080	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	28
PID 900 wrote to memory of 1080	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	28
PID 900 wrote to memory of 1080	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	28
PID 900 wrote to memory of 1080	900	db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe	28
PID 748 wrote to memory of 1072	748	cmd.exe	29
PID 748 wrote to memory of 1072	748	cmd.exe	29
PID 748 wrote to memory of 1072	748	cmd.exe	29
PID 1100 wrote to memory of 1520	1100	cmd.exe	30
PID 1100 wrote to memory of 1520	1100	cmd.exe	30
PID 1100 wrote to memory of 1520	1100	cmd.exe	30
PID 300 wrote to memory of 1472	300	cmd.exe	31
PID 300 wrote to memory of 1472	300	cmd.exe	31
PID 300 wrote to memory of 1472	300	cmd.exe	31
PID 1080 wrote to memory of 1660	1080	cmd.exe	32
PID 1080 wrote to memory of 1660	1080	cmd.exe	32
PID 1080 wrote to memory of 1660	1080	cmd.exe	32

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1072	bcdedit.exe
1520	bcdedit.exe

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1472	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe
"C:\Users\Admin\AppData\Local\Temp\db8b499d613b604a439bca37c3be2f578bdfcde1b2271eccbcf22db85996e785.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\system32\cmd.exe
  cmd.exe /c vssadmin delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:300
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1472
- C:\Windows\system32\cmd.exe
  cmd.exe /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:748
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} bootstatuspolicy ignoreallfailures
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:1072
- C:\Windows\system32\cmd.exe
  cmd.exe /c bcdedit /set {current} recoveryenabled no
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1100
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} recoveryenabled no
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:1520
- C:\Windows\system32\cmd.exe
  cmd.exe /c netsh advfirewall set allprofiles state off
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1080
- - C:\Windows\system32\netsh.exe
    netsh advfirewall set allprofiles state off
    3⤵
    - Modifies service
    PID:1660

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:1828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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